Web/API/GlobalEventHandlers/ondragenter

A global event handler for the dragenter event.

Syntax

var dragenterHandler = targetElement.ondragenter;

Return value

dragenterHandler: The dragenter event handler for element targetElement.

Example

This example demonstrates using the ondragenter attribute handler to set an element's dragenter event handler.

<!DOCTYPE html>
<html lang=en>
<title>Examples of using the Drag and Drop Global Event Attribute</title>
<meta content="width=device-width">
<style>
  div {
    margin: 0em;
    padding: 2em;
  }
  #source {
    color: blue;
    border: 1px solid black;
  }
  #target {
    border: 1px solid black;
  }
</style>
</head>
<script>
function dragstart_handler(ev) {
 console.log("dragStart");
 // Change the source element's background color to signify drag has started
 ev.currentTarget.style.border = "dashed";
 ev.dataTransfer.setData("text", ev.target.id);
}

function dragover_handler(ev) {
 console.log("dragOver");
 // Change the target element's border to signify a drag over event
 // has occurred
 ev.currentTarget.style.background = "lightblue";
 ev.preventDefault();
}

function drop_handler(ev) {
 console.log("Drop");
 ev.preventDefault();
 var data = ev.dataTransfer.getData("text");
 ev.target.appendChild(document.getElementById(data));
}

function dragenter_handler(ev) {
 console.log("dragEnter");
 // Change the source element's background color for enter events 
 ev.currentTarget.style.background = "yellow";
}

function dragleave_handler(ev) {
 console.log("dragLeave");
 // Change the source element's border back to white
 ev.currentTarget.style.background = "white";
}

function dragend_handler(ev) {
 console.log("dragEnd");
 // Change the target element's background color to visually indicate 
 // the drag ended.
 var el=document.getElementById("target");
 el.style.background = "pink";
}

function dragexit_handler(ev) {
 console.log("dragExit");
 // Change the source element's border back to green to signify a dragexit event
 ev.currentTarget.style.background = "green";
}

function init() {
 // Set handlers for the source's enter/leave/end/exit events
 var el=document.getElementById("source");
 el.ondragenter = dragenter_handler;
 el.ondragleave = dragleave_handler;
 el.ondragend = dragend_handler;
 el.ondragexit = dragexit_handler;
}
</script>
<body onload="init();">
<h1>Examples of <code>ondragenter</code>, <code>ondragleave</code>, <code>ondragend</code>, <code>ondragexit</code></h1>
 <div>
   <p id="source" ondragstart="dragstart_handler(event);" draggable="true">
     Select this element, drag it to the Drop Zone and then release the selection to move the element.</p>
 </div>
 <div id="target" ondrop="drop_handler(event);" ondragover="dragover_handler(event);">Drop Zone</div>
</body>
</html>

Specifications

Specification	Status	Comment
HTML Living StandardThe definition of 'ondragenter' in that specification.	Living Standard
HTML 5.1The definition of 'ondragenter' in that specification.	Recommendation	Initial definition

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`ondragenter`	Chrome Full support 4	Edge Full support 12	Firefox Full support 3.5	IE Full support 10	Opera Full support 12	Safari Full support 3.1	WebView Android No support No	Chrome Android No support No	Firefox Android No support No	Opera Android No support No	Safari iOS No support No	Samsung Internet Android No support No

Legend

Full support: Full support
No support: No support

Web/API/GlobalEventHandlers/ondragenter

Contents

Syntax

Return value

Example

Specifications

Browser compatibility

Legend

See also